Asymptomatic (n = 500) patient characteristics and indications for CT
| Characteristics/Indications | |
|---|---|
| Mean age (range) (yr) | 50.7 ± 15.8 (19–87) |
| No. male (%) | 336 (67.2%) |
| Imaging indication (No.) (%) | |
| Trauma | 368 (77.6%) |
| Mass | 45 (9.0%) |
| Infection | 33 (6.6%) |
| Pain | 26 (5.2%) |
| CSF leak/cephalocele | 14 (2.8%) |
| Cranial nerve palsy | 5 (1.0%) |
| Otosclerosis | 4 (0.8%) |
| Surgical planning | 3 (0.6%) |
| Radionecrosis | 2 (0.4%) |